Hide page name title

Shapely
1

Hello, I am using Shapely theme.
I would like to remove Page title but can’t find how to do it (I used extensions but it is not working). Thank you for your help.
https://couleurstextiles.fr/front-page/habillage-des-fenetres/

2

Hey there

Add this css code in appearance > customize > additional css:

.post-content .entry-content .post-title {
    display: none;
}